An international scientific research team has discovered two new planets that are only 100 light years away from the earth, one of which may be suitable for life.
According to CBS, both planets are called "super Earth", namely LP 890-9b and LP 890-9c, respectively. LP 890-9b is about 30% higher than Earth, with a radius of more than 5,200 miles (about 8,369 kilometers), and can orbit its star in just 2.7 days; LP 890-9c (later renamed SPECULOOS-2c by researchers) is about ~ 40%, with a radius of more than 5400 miles (about 8690 kilometers), and the orbital period takes about 8.5 days.
According to NASA, "Super Earth" is a unique class of exoplanet in the solar system, which is larger than our planet, but lighter than ice giant . They are composed of gas and rocks, and can reach 10 times the mass of the Earth.
This discovery was made by University of Liège, Belgium, using NASA's "Tess" (TESS) mission satellite and the university's own telescope SPECULOOS (a habitable planet that shades ultra-cold stars). The relevant paper will be published in the recent journal Astronomy and Astrophysics.
The second planet LP 890-9c has aroused the interest of scientists. Although the planet's orbit is very close to its star, only about 1/10th of the distance between Mercury and the Sun, it received it The amount of stellar radiation is still low, and if it has enough atmosphere, liquid water may appear on its surface. This is because its star LP 890-9 is about 6.5 times smaller than our Sun and is about half the temperature. "This explains why LP 890-9c may have conditions suitable for life, despite being closer to its star."
researchers plan to further study the habitability of LP 890-9c, which may be possible Become the second planet that is most conducive to maintaining life.
In such a vast universe, how could there be only a living planet like Earth? With such doubts, humans have never stopped looking for extraterrestrial life or even extraterrestrial civilizations. Observe with various means and deduce them based on various data. We calculate various probabilities and build various models, hoping to hear the responses deep in the universe. This time, the potential planet is not far from the earth, only 100 light years. Unlike the Earth, it is very close to stars, but the amount of radiation it receives is still very low. Next, researchers will continue to stare at this "neighbor" to see if it is really livable and whether it can give us new surprises.
(Original title: The new discovery of "super earth" may support the existence of life, only one hundred light years away from the earth)
Source: Science and Technology Daily
Process Editor: tf028
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-